Improvement in stoves and furnaces



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'J. r. QUI MBY. STOVE AND FURNACE, h

No.173,05'7. Patented Feb.1,1876.

N- PETERS, PNOTO-LITHOGNAFHER, WASHINGTON. 11Gv UNITED STATES Jones R. QUIMBY,*OF TROY, NEW YORK, ASSIGNOR T0 .swRTT, QUIMBY &

PAT NT. OFFICE.

l 1 i PERRY, on SAME .PLAGE;

- IMPROVEMENT m stoves Ann FURNACES.

Specification forming part of Letters Patent Dim-173,057, dated February 1, 1876; application filed August 14, 1874.; I

To all whom it may concern:

Be it known thatI, JULIUS EQUni/ BY, of the city of Troy, in the county of Rensselaer and State of New York, have inventeda new and useful Improvement in Stoves and Furnaces, of which the following -is a specification, reference being bad to the accompanying drawing. i

This invention consists of the combination, in a stove or furnace, of a fire-pot having its lower end open and horizontahahd a horizontally-vibrating and vertically-tilting grate no larger or somewhat smaller in diameter or area than the inner diameter or area of the lower end of the fire-pot, and mounted within an entirely surrounding air-draft chamber having a front door or doors in its casing, and at a distance from and directly below'and parallel to the lower end of the fire-pot, and upon asupport which is below the'grate and isolated from the fire-pot, so as to form an entirely unobstructed and uniform lateral annular airdraft aperture, which extends all around and between the lower end of the fire-pot and the rim of the grate, and is sufficiently narrow to prevent the coal from escapingthrough it from the fire-pot, and yet wide enough to permit the small cinders as well as the ashes tobefreely discharged laterally and, equally through said annular aperture all around the grate upon vibrating the latter horizontally; and so that the grate is so small in diameter or area, in respect to the lower end of the fire- .pot, that ashes and cinders cannot lodge or grate; and so that the entire grate can also be tilted on its said support, so as to discharge the'm'ass of ashes and cinders from the grate and fire-pot when the fire is suffered to die out.

In the aforesaid drawing, Figure 1 represents a vertical section of the hollow base-section' and fire-pot, and an edge elevation of the horizontal grate, of a stove which embodies my aforesaidinvention. Fig. 2 is a vertical section of the sameat the line 22, Fig.3, 1

showing the grate inclined. Fig. 3 is a horizontal section of the same at, and plan of parts below, the line y y in Fig. 2. l

A is the fire-pot, having its lower end open, horizontal, and slotted or toothed; but the lower end of the fire-pot may be solid or without teeth or slots. Bis a horizontally-vibrating and vertically-tilting;ringless grate, which a is somewhat smaller in diameter or area than the innervdiameter or area of the lower end of the fire-pot, and is mounted parallel to, and at a short distance from and directly below, the lower end of the fire-pot, as shown in Fig. 1, so as to leave auniform, annular, lateral, air-draft, and cinder-discharging aperture, 0, all around and between the lower end of the fire-pot and'the rim of the grate. I

commonly mount the grate 7B so that the upper edge of its rim is about one inch from the I lower end ofthe fire-pot A in stoves and furnaces for burning the ordinary stove and nut sizes of coal; but the annular aperture 0 may be of any suitable width, which shall prevent thecoals from falling out, and also allow the cinders to be freely'discharged v through it while the grate is being vibrated horizontally. D-is an air-chamber extending upward immediately and entirely around the grate B and, lower part of the fire-pot fromithe ash-pit draft-chamber E. F is a support for the grate. B, and it is, in turn,

supported by its ends resting on lugs or in sooketsg 9, cast on or in the inner wall of the casing H, and is-so arranged as to support the grate in an isolated position, not only from the fire-pot, but also from the inner walls of the stove, in order to leave a free and unob- -structed annular space, (3, between the top of the grateand fire-pot, and also an air-chamber, ,D, between the grate and inner wall ofthe stove, and so arranged that the grate may .be 1 horizontally rotated, and vertically tilted in any desired direction. This bar or support F,'starting from the lug g, is-bent back nearly at right angles, extending to a point near the edge of the grate on that side, when in a central position in the ash-pit chamber; thence, bending at nearly right angles, it extends in a direct line across the center of said chamber, and a little beyond the center thereof, then is bent back at an obtuse angle, and extends in a direct line to the lug g, in which that end is secured. It will then be perceived thatthe general line of direction of his bar is diagonal to a line drawn centrally through the stove from the center of one side to the center of the other side, one of the ends of said bar F being in front of said line, the other end tothe rear of it. 1 r

The central part of the grate B has two openings, '5 i, separated by a short bar, j, and the support F has two projections, k k, which extend upward on opposite sides of the bar j, and through the openings *5 i, so as to keep the grate directly below and concentric with the lower end of the fire-pot, and permit the grate to be vibrated horizontally about its center. The projection k is united to the bar F by a lateral stem, L,so that the grate can be turned thereon into an inclined position within and below the fire-pot, as indicated in Fig. 2. An arm, M, is fast on the grate at a point at or near the center of one side of the same, and at a point in front of the end of the support-bar F, which is secured in the lug g, and extends laterally therefrom through a slide, 12, covering a slot in the casing H, so that by means of a suitable key applied to that arm outside of the casing, the grate can be vibrated horizontally about its center, and alsoinclined or tilted in a vertical plane.

It will be seen that from this construction of the bar F the grate B, which is an entire organism without supporting or inclosing rings, is capable not only of being vibrated horizontally within certain limits, but in a condition of rest is supported firmly against any inclination to tilt, by .both the end of the bar F, turned to the rear, and the arm M, which thenstands at an angle with such end of the bar; that when the arm M is moved toward the rear of the stove, and brought near to the end of the bar F, the crooked conformation of such bar will permit the grate to be tilted in a direction toward the back of the stove, and

when said arm is moved toward the front of the stove, then the grate may be tilted vertically in that direction.

0 O are apertures, furnished with mica lights or doors, in the casing H, opposite, or nearly opposite, to the annular space 0 between the grate and fire-pot, and through whichape'rtures the fire on the grate will be visible; and a poker can be inserted through the front or side apertures O and space 0 into the burning fuel, to remove obstructing clinkers and slate from the grate when the latter is inclined, as shown in full lines in Fig. 2.

I am aware that stoves have been heretofore made with a fire-pot having its lower end open and horizontal, and with a horizontallyvlbrating grate'of larger diameter than the diameter of the lower endof the fire-pot,"and

mounted within an immediatelysurrounding air-draft chamber or upward extension of the ash-pit, and at a distance below, concentric with, and parallel to the lower end of the firepot, and upon a support below the grate and isolated from the fire-pot, so as toforman entirely unobstructed annular air-draft and cinder-discharging aperture all around andfbetween the lowerend of the fire-pot and the upper surface ofthe grate; but my present invention is not embodied in any such stove or furnace which has a grate of larger diameter or area than the lower end of the fire-pot, or in which the whole grate-bed cannot be turned vertically into an inclined position inside of the fire-pot, or in which ashes and cinders will lodge and accumulate upon the outer portion of the grate outside of the fire-pot or limit of the burning fuel, and therebypresent a very unsightly appearance, and obstruct the lateral draft of air to the fire through the uniform annular aperture between the lowerend of the fire-pot and the grate.

I am also aware that stoves have been heretofore devised with a vertically-tilting, but not horizontally-vibrating, grate of smaller diameter than the inner diameter of the lower end of the fire-pot, and mounted at a distance from and directly below and parallel, or nearly so, to the lower end of the fire-pot,so as to leave a uniform annular draft-aperture all around and between the rim of thegrateand the lower end of the fire-pot; but my aforesaid invention is not represented in any such stove in which the grate cannot be vibrated horizontally aboutits center, so as to thereby discharge ashes and cinders laterally therefrom through the annular aperture between and all around the lower end of the fire-pot and the rim of the grate; neither is my invention shown in any stove wherein a horizontally-vibrating or a tilting grate is supported at a distance below the fire-pot by lugs or arms extending downward from the fire-pot, so as to interrupt or obstruct the continuity of the lateral air-draft and cinder-discharging aperture between the grate and the lower end of the firepot.

What I claim as new and of my invention 1. In a heating stove or furnace, the combination of the following elements, viz: a fire-pot with a horizontal outline of bottom; a clear open space below all parts of the same; a grate-surface of a less diameter than the in side of the fire-pot,- adapted for horizontal vibration for inclination in either direction, and suspended centrally below the fire-pot; a clear open space between the periphery'of the gratesurface and the walls of t the ash-pit chamber, and openings in the outer case of the stove to give free access to each part of the upper surface of the grate, substantially as andfor the purposes set forth.

2. In a heating stove or furnace, the fixed supporting-bar F, constructed substantially as described, extending diagonally across the ash-pit chamber,'and secured in the walls thereof, said bar having the projections k k wholly upon one side, for the purpose of permitting the grate mounted on said bar to be 'vibrated horizontally, inclined in various disecured in said lugs, and the grate-surface B,

mounted upon said bar, entirely clear on all sides from the walls of the ash-pit chamber,

substantially as and for the purposes set forth.

4. In combination, in a heating stove or furnace, the grate-surface B, with central openings 43 i and arm M, and the fixed sup porting bar 7F, extending diagonally across the ash-pit chamber, and secured in the walls thereof, said bar having the projections k is adapted toentersaid. openings, substantially as and for the purposes set forth.

In testimony whereof I hereuntosubscribe my name this 10th day of August, 1874.

JULIUS F. QUIMBY. r

Witnesses: I JAMEs T. GOODFELLOW, AUSTIN F. PARK. 

